ASoC: hdac_hda: Fix hlink refcount leak on component registration failure
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: hdac_hda: Fix hlink refcount leak on component registration failure hdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get() before registering the ASoC component. If component registration fails, the function returns without dropping the link reference. Always call snd_hdac_ext_bus_link_put() after the registration attempt so the reference taken during probe is balanced on both success and failure.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.110, 6.18.51, 7.2.5, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89944
- 2026-10-03 Alias added: GHSA-4wgj-g6wx-2p76
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@60b5824ae259ad15f7878e4e763ec31ba4db55f2 · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-30 Fix available: Linux/Linux@1c2625fbdeb17376f76c57b7669e6aa6500a7149, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 6
- https://git.kernel.org/stable/c/1c2625fbdeb17376f76c57b7669e6aa6500a7149
- https://git.kernel.org/stable/c/60b5824ae259ad15f7878e4e763ec31ba4db55f2
- https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f
- https://git.kernel.org/stable/c/e8ea01a0457080b0cc7c69c430c0ab65d84dc377
- https://git.kernel.org/stable/c/cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c
- https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268
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Sources
- CVE-2026-89944 · CVE Program
- CVE-2026-89944 · NVD
- FIRST EPSS
- GHSA-4wgj-g6wx-2p76 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89944 · Red Hat security data · CC BY 4.0
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